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    Damage detection in bridge structures under moving loads with phase trajectory change of multi-type vibration measurements

    Access Status
    Fulltext not available
    Authors
    Zhang, W.
    Li, Jun
    Hao, Hong
    Ma, H.
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Zhang, W. and Li, J. and Hao, H. and Ma, H. 2017. Damage detection in bridge structures under moving loads with phase trajectory change of multi-type vibration measurements. Mechanical Systems and Signal Processing. 87 (Part A): pp. 410-425.
    Source Title
    Mechanical Systems and Signal Processing
    DOI
    10.1016/j.ymssp.2016.10.035
    ISSN
    0888-3270
    School
    Department of Civil Engineering
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DE140101741
    URI
    http://hdl.handle.net/20.500.11937/41554
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents a non-model based damage detection approach for bridge structures under moving loads based on the phase trajectory change of multi-type vibration measurements. A brief theoretical background on the vibration of a simply-supported bridge with a crack under moving load is described. The phase trajectories of multi-type dynamic responses are obtained and a damage index is defined as the separated distance between the trajectories of undamaged and damaged structures to indicate the damage location. Numerical studies on a simply-supported beam structure are conducted to investigate the sensitivity and robustness of the proposed approach to accurately identify the damage location. Experimental studies demonstrate that the proposed approach can be used to successfully identify the shear connection failure in a composite bridge model subjected to moving loads.

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